The more accessible option

Deliver One Time Passcodes via voice text-to-speech &
make sure numbers can still be verified regardless
of accessibility, or fixed line issues.

Reach customers on any device

Make sure you can reach users on any device. If SMS or Flash Call don’t cut it, voice verification can step in to save the day & deliver the OTP code.

Country customisation

Verifying users on a global scale? No worries, with Sinch you can change your voice prompt depending where in the world you’re sending to, making sure you always hit the mark when it comes to local customs & language.

Global reach

Verify users around the corner or around the world! Make sure your voice verification gets delivered to end users no matter where they are - you can reach more than 200 countries & territories with us.

The Essentials

Multiple language support

Let us worrying about which language your end user needs their voice call in – our API has it all under control!

Callback on verification

Need confirmation of verification? No problem! We’ve got you covered with a quick callback to your backend when end users have been verified.

Verification compliance

Verify phone, landline or sight impaired individuals & make sure you’re keeping in line with the American Disabilities Act (ADA) in the US.

Get Started

Want to find out more? Our team of experts are on hand to answer your questions. Complete the form below and we’ll be in touch soon.

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